Dell PowerVault 22x S System Upgrade to Ultra 320 EMM
Summary
The Dell PowerVault 22xS Upgrading to Ultra 320 EMMs guide describes replacing Ultra 160 EMMs with Ultra 320 EMMs in storage systems. It covers redundant and non-redundant configurations, warm-pluggable replacement, and data backup requirements. Mixing Ultra 160 and Ultra 320 EMMs is not supported. Target users are storage administrators maintaining PowerVault systems.
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Dell™ Power Vault™ 22x S Systems — Upgrading to Ultra 320 EMMs CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. This document describes how to upgrade your system by removing the primary and secondary Ultra 160 enclosure management modules (EMMs) and installing the Ultra 320 EMMs in your storage system. A system with redundant enclosure management features two EMMs that are designated as primary and secondary. A system with nonredundant enclosure management consists of one EMM and one SCSI terminator card. In redundant EMM systems, replace both Ultra 160 EMMs with the Ultra 320 EMMs. In nonredundant EMM systems, replace only the Ultra 160 EMM and leave the SCSI terminator card in place. EMMs and the SCSI terminator card are "warm-pluggable" and can be removed and installed without shutting down the storage system, provided all I/O to the module has ceased. NOTICE: You should perform a complete data backup before performing any hardware changes. Otherwise, you might lose all of your data. NOTICE: A mixture of Ultra 160 EMMs and Ultra 320 EMMs is not supported. If you replace one Ultra 160 EMM with an Ultra 320 EMM, you must replace the other Ultra 160 EMM. NOTE: To achieve full Ultra 320 functionality, your EMMs, hard drives, and host controller must support Ultra 320. NOTE: You should have the latest version of the Dell Open Manage™ Array Manager and host server controller firmware installed on your host server before you upgrade your system to Ultra 320 EMMs. To obtain the latest version of Array Manager and the firmware, see the Dell Support website at support.dell.com.
Removing the Ultra 160 EMM CAUTION: Before performing any of the procedures listed in this section, read and follow the safety instructions in the System Information Guide that shipped with your computer. NOTE: In a cluster configuration, you must turn off any server nodes connected to the storage system while you replace an EMM.
P/N 3W495 Rev. A00
April 2003
Page Summary Contents For Dell PowerVault 22x S System Upgrade to Ultra 320 EMM
Manual Details
| Brand | Dell |
|---|---|
| Pages | 28 |
| File Size | 2.51 MB |
| Published | June 27, 2026 |
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Frequently Asked Questions
What critical step must I take before upgrading my hardware?
You must perform a complete data backup, as failure to do so could result in losing all of your data.
Do I need specific software updates before starting the EMM upgrade?
Yes, you should install the latest version of Dell OpenManage Array Manager and host server controller firmware first.
Is it okay to mix old Ultra 160 EMMs with new Ultra 320 units?
No, a mixture of Ultra 160 and Ultra 320 EMMs is not supported; if you replace one, you must replace the other.
Can I perform this upgrade without shutting down power completely?
EMMs are 'warm-pluggable' if all I/O to the module has ceased, but caution should be exercised.